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Finding the Fourth Proportional to 37,423.60, 56,143.20 and 12,471.40

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Solution

The fourth proportional to 37,423.60, 56,143.20 and 12,471.40 is: 18,709.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,423.60 : 56,143.20 = 12,471.40 : x
  2. Step 2: Convert to fraction form
    37,423.60/56,143.20 = 12,471.40/x
  3. Step 3: Cross multiply
    37,423.60x = 56,143.20 × 12,471.40
  4. Step 4: Simplify right side
    37,423.60x = 700,184,304.48
  5. Step 5: Solve for x
    x = 700,184,304.48/37,423.60
  6. Step 6: Final answer
    x = 18,709.70

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.